CN209091607U - A kind of suction aspirator tip for facilitating Kirschner wire to position - Google Patents

Abstract

This application discloses a kind of suction aspirator tips for facilitating Kirschner wire to position, and connect a hollow ball shape end by the way that the Kirschner wire to be inserted into the aspirator tube of the suction aspirator tip, and in the distal end of the aspirator tube；Hollow ball shape end bottom is equipped with locating detent, promptly on the cartilage surface, the tip of the Kirschner wire can be by adjusting the angle at the hollow ball shape end simultaneously, and it is adjusted to suitable posture and angle, steadily pierce in cartilage surface, it is injured to both avoid the stroke caused by possible sliding on the cartilage surface of the high-speed rotating Kirschner wire, it can guarantee that the Kirschner wire can carry out drilling operation to the cartilage surface along any desired angle again, to effectively increase the success rate of Kirschner Wire Drilling operation, reduce the operation pain of patient.

Description

A kind of suction aspirator tip for facilitating Kirschner wire to position

Technical field

This application involves medical instruments field more particularly to a kind of suction aspirator tips for facilitating Kirschner wire to position.

Background technique

Using arthroscope, carries out micro fractures operation and be commonly used for repairing the technology of the articular cartilage disorders such as knee joint.Doctor Using arthroscope, by surgical knife tool, the tools such as attractor for operation first remove the damaged part of cartilage, recycling gram Family name's needle is extend into ossis as drill bit in cartilage surface upper drill hole, so that bone marrow cell is mixed and is condensed with blood, is formed as Smooth and firm repair tissue, thus instead of the effect of cartilage.It, can be with simultaneously as contain stem cell in blood clotting It therefrom differentiates to form new cartilage cell, to realize the Regeneration and Repair of cartilage in situ.

Microfrature method is simple, is a kind of Minimally Invasive Surgery, easy to operate, is that the full-thickness cartilages such as treatment knee joint damage A kind of safe and effective method, can obviously improve the function of joint of patient, and mitigate pain symptom, improve the quality of living.So this Kind operation is increasingly frequent in the application of field of orthopaedics.

But since it is desired that drill on cartilage surface, and the usual smoother of cartilage surface and hard, so when Kirschner wire Under electric drill driving when high-speed rotation, the same position being often difficult to hold on cartilage surface remains along cartilage and lacks at tip The same position in area is damaged, is pierced in ossis.Particularly in view of described Kirschner wire itself has certain length, that is, Career in medicine green hand, which holds the electric drill of positioning, also has a certain distance to the cartilage surface, and because Kirschner wire be in high speed rotation, So cannot directly stablize its position with hand or surgical instrument, also, the tip of the Kirschner wire is also often because of practical behaviour The cartilage surface situation of work limits, and is unable to keep always piercing in ossis with the angle vertical with cartilage surface.Therefore, high speed The tip of the Kirschner wire of rotation, is just easy to slide on cartilage surface, bouncing pilotage, so that normal around damaged part It is attached to the cartilage of skeletonization end, occurrence of large-area, which is torn off, to fall off, or at least generates scuffing, this is just further aggravated instead The damage of cartilage, so that operation is run counter to desire.

Therefore, the prior art has much room for improvement and improves.

Utility model content

In view of the defect of the above-mentioned prior art, the application's is designed to provide a kind of aspirator for facilitating Kirschner wire to position Head, thus reduce because the tip of the Kirschner wire slided on cartilage surface caused by the secondary injury of cartilage surface.

The technical solution of the application is as follows:

A kind of suction aspirator tip for facilitating Kirschner wire to position, which is characterized in that including aspirator tube, the connection of aspirator tube bottom end One is equipped with the hollow ball shape end of bottom opening, and spheric end bottom is equipped with locating detent.

Preferably, the aspirator tube is detachably connected the hollow ball shape end.

In an advantageous embodiment, the hollow ball shape end includes hollow ball shape set and is located in hollow ball shape set The top of the interior ball in portion, the hollow ball shape set is provided with top opening；Interior top dome portion connects aspirator tube；Locating detent is located at hollow Spherical shape set bottom.

It is highly preferred that the bottom opening is located at hollow ball shape set bottom, the locating detent is arranged around bottom opening.

In an advantageous embodiment, the aspirator tube is connected with the interior ball by the helicitic texture engaged.

In an advantageous embodiment, the interior ball, which is equipped with, stretches out open-topped threaded connection section, aspirator tube bottom Equipped with the thread segment being attached with the threaded connection section.

In an advantageous embodiment, the interior ball is hollow interior ball, and the bottom of interior ball is equipped with towards the bottom of bottom opening Portion's round mouth.

In an advantageous embodiment, the interior ball can cover inner rotation in hollow ball shape.For example, interior ball and hollow ball shape There are the diameters that gap or interval or interior bulb diameter are less than hollow ball shape set between set.

In an advantageous embodiment, the top opening is parallel with the bottom opening.It is highly preferred that the top is opened The center of circle of mouth and the bottom opening is conllinear with the centre of sphere that the hollow ball shape covers.

In an advantageous embodiment, the diameter of the bottom round mouth is less than the top opening and the bottom opening Diameter.

In the content of the utility model context, bottom end or distal end refer to one end close to hollow ball shape end, proximal end or Top refers to one end far from hollow ball shape end.

A kind of suction aspirator tip for facilitating Kirschner wire to position disclosed in the present application, by the way that the Kirschner wire is inserted into the suction In the aspirator tube of aspirator tip, and a hollow ball shape end is connected in the distal end of the aspirator tube, utilizes the hollow sphere The locating detent of shape end bottom, promptly on the cartilage surface, while the tip of the Kirschner wire can be by adjusting described hollow The angle of spheric end, and it is adjusted to suitable posture and angle, it steadily pierces in cartilage surface, is revolved to both avoid high speed The Kirschner wire turned possible sliding on the cartilage surface causes stroke to injure, and can guarantee that the Kirschner wire being capable of edge Any desired angle carries out drilling operation to the cartilage surface, so that the success rate of Kirschner Wire Drilling operation is effectively increased, Reduce the operation pain of patient.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the suction aspirator tip for facilitating Kirschner wire to position of the application.

Fig. 2 is the structural schematic diagram of the aspirator tube of the suction aspirator tip for facilitating Kirschner wire to position of the application.

Fig. 3 is the structural schematic diagram at the hollow ball shape end of the suction aspirator tip for facilitating Kirschner wire to position of the application.

Fig. 4 is the structural schematic diagram of the hollow ball shape set of the suction aspirator tip for facilitating Kirschner wire to position of the application.

In figure, 1. aspirator tubes, ball, 3. hollow ball shape sets, 12. thread segments, 21. threaded connection sections, 22. bottoms circle in 2. Mouth, 31. top openings, 32. bottom openings, 33. locating detents

Specific embodiment

The application provides a kind of suction aspirator tip for facilitating Kirschner wire to position, for the purpose, technical solution and effect for making the application Fruit is clearer, clear, referring to the drawings and gives an actual example to the application further description.It should be appreciated that this place is retouched The specific embodiment stated is only used to explain the application, is not used to limit the application.

The suction aspirator tip for facilitating Kirschner wire to position of the application, is mainly used in, when use arthroscope carries out micro fractures hand When art, after doctor removes the damaged part of cartilage, recycle Kirschner wire as drill bit is in the occasion of cartilage surface upper drill hole Prevent the Kirschner wire from skidding on cartilage surface and causing secondary injury.

In the preferred embodiment of the application, the overall structure of the suction aspirator tip is as shown in Figure 1, include attracting Device pipe 1, the detachably connected hollow ball shape end in the distal end of the aspirator tube 1, hollow ball shape end includes interior ball 2, is attracted Device pipe 1 is detachably connected on interior ball 2, and described removably can be is spirally connected or is clamped.It is preferably threadedly coupled, referring to figure Thread segment 12 is arranged in 1- Fig. 3, i.e., the distal end of the described aspirator tube 1, and having for the top setting at the hollow ball shape end 2 is certain high The threaded connection section 21 of degree, in use, be mutually spirally connected, for example, as shown in the detailed structure view of the aspirator tube 1 of Fig. 2, described The thread segment 12 of distal end is equipped with external screw thread, and the interior ball 2 is then as shown in the concrete structure diagram of Fig. 3, and the threaded connection section 1 is set There is the internal screw thread of engagement, cooperates the external screw thread.But in the utility model, it is also possible to thread segment 12 equipped with internal screw thread, and The threaded connection section 1 is equipped with the external screw thread of engagement.

Fig. 1 is returned, is arranged with a hollow ball shape set 3 outside the interior ball 2, also, the aspirator tube 1 is from described hollow The opening at the top of spherical shape set 3, i.e. top opening 31, threaded connection section 21 are stretched out from top opening 31, connect aspirator tube 1. The bottom of hollow ball shape set 3 is additionally provided with one group of locating detent 33, the locating detent 33 be used for by hollow ball shape set 3 together with Internal interior ball 2 is stablized on cartilage surface.It is separated from each other the locating detent 33 of setting using one group, rather than some face and cartilage surface The benefit being in contact is, because cartilage surface is not usually a flat smooth flat, using the locating detent being provided separately 33, in a manner of the point contact of dispersion, it is easier to which the stabilization for keeping the hollow ball shape set 3 is considered further that 1 points A stable plane can be constituted, so the locating detent 33 should be set as in the embodiment of at least three, Fig. 4 fixed provided with 4 Position pawl 33, and it is highly preferred to be equal between the locating detent 33.Hollow ball shape covers 3 bottoms and is equipped with bottom opening 32, Locating detent 33 is arranged around bottom opening 32.

The specific structure is shown in FIG. 3 for the interior ball 2, and upper end is the threaded connection section 21, be spirally connected or be clamped described in The distal site of aspirator tube 1.And lower end is then the bottom round mouth 22 towards bottom opening 32, the tip of the Kirschner wire i.e. from It is stretched out in the bottom round mouth 22, arrives at cartilage surface.The 22 place plane of bottom round mouth, preferably with the threaded connection section 21 it is axially vertical, keep nearly straight angle to prolong from the threaded connection section 21 to facilitate the tip of the Kirschner wire It stretches and arrives on the cartilage surface outside the bottom round mouth 22.

The specific structure of the hollow ball shape set 3, then as shown in figure 4, including that a top opening 31 and a bottom are opened Mouth 32.The top opening 31 and the bottom opening 32 are preferably circular flat, and are parallel to each other, equal in magnitude, also, The centre of sphere in the center of circle of the top opening 31 and the bottom opening 32 and hollow ball shape set 3, three point on a straight line.Because described Kirschner wire is almost overlapped with the central axes of the threaded connection section 21, so, when the interior ball 2 is in hollow ball shape set 3 When portion's rotation or offset, the set-up mode of the top opening 31 and the bottom opening 32, and the diameter that two are open It is set greater than the diameter of the bottom round mouth 22, so that it may guarantee that the Kirschner wire can pass freely through two openings, without Damage can be generated because of touching.

It is carried out in cartilage operation by arthroscope, when needing to bore brokenly cartilage using the Kirschner wire, when obtaining marrow, The interior ball 2 that the distal end of the aspirator tube 1 is connected is placed in the hollow ball shape set 3, the aspirator tube 1 is kept to stretch out The top opening 31, bottom opening 32 described in 22 face of bottom round mouth；Again by the tip of the Kirschner wire from the suction The proximal end of lead device pipe 1 is inserted into the aspirator tube 1, and is stretched out from the bottom round mouth 22, i.e., the tip of the described Kirschner wire from The contact cartilage surface is extend out in the bottom opening 32.At this point, hollow ball shape set 3 is determined by the locating detent 33 Around cartilage damaged part, that is, it is positioned at and is intended near tapping.Driven finally by the aspirator tube 1 rotation and partially The interior ball 2 is moved, searches out suitable angle to position the position that the tip of the Kirschner wire pierces on the cartilage surface.

In conclusion a kind of suction aspirator tip for facilitating Kirschner wire to position disclosed in the present application, by by the Kirschner wire It is inserted into the aspirator tube 1 of the suction aspirator tip, and connects an interior ball 2 in the distal end of the aspirator tube 1, cooperation is arranged Relatively turnable hollow ball shape set 3 in interior 2 outside of ball, the locating detent 33 of 3 bottoms is covered using the hollow ball shape, is grabbed Tightly on the cartilage surface, while the tip of the Kirschner wire can be adjusted by adjusting the angle at the hollow ball shape end Whole to suitable posture and angle, steadily pierce in cartilage surface, to both avoid the high-speed rotating Kirschner wire in institute Stating possible sliding on cartilage surface causes stroke to injure, and can guarantee that the Kirschner wire can be along any desired angle to institute It states cartilage surface and carries out drilling operation, to effectively increase the success rate of Kirschner Wire Drilling operation, reduce the operation pain of patient It is bitter.

It should be understood that the application of the application is not limited to above-mentioned citing, it for those of ordinary skills, can With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of the application appended claims Protect range.

Claims (9)

1. a kind of suction aspirator tip for facilitating Kirschner wire to position, which is characterized in that including aspirator tube, aspirator tube bottom end connection one A hollow ball shape end equipped with bottom opening, spheric end bottom are equipped with locating detent.

2. suction aspirator tip according to claim 1, which is characterized in that the hollow ball shape end includes hollow ball shape set and position The top of interior ball inside hollow ball shape set, the hollow ball shape set is provided with top opening；Interior top dome portion connection attracts Device pipe；Locating detent is located at hollow ball shape set bottom.

3. suction aspirator tip according to claim 2, which is characterized in that the bottom opening is located at hollow ball shape set bottom, The locating detent is arranged around bottom opening.

4. suction aspirator tip according to claim 3, which is characterized in that the top opening is parallel with the bottom opening, The center of circle of the top opening and the bottom opening is conllinear with the centre of sphere that the hollow ball shape covers.

5. suction aspirator tip according to claim 2, which is characterized in that the aspirator tube and the interior ball pass through engagement Helicitic texture connection.

6. suction aspirator tip according to claim 5, which is characterized in that the interior ball, which is equipped with, stretches out open-topped screw thread company Section is connect, aspirator tube bottom is equipped with the thread segment being attached with the threaded connection section.

7. suction aspirator tip according to claim 2, which is characterized in that the interior ball is hollow interior ball, and the bottom of interior ball is set There is the bottom round mouth towards bottom opening.

8. suction aspirator tip according to claim 7, which is characterized in that the diameter of the bottom round mouth is less than the top and opens The diameter of mouth and the bottom opening.

9. suction aspirator tip according to claim 2, which is characterized in that the interior ball can cover inner rotation in hollow ball shape.